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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...), you will get the return value thrown by the ls command, which should be 0 (default "success" return value). If it doesn't exist, you should get a number other then 0. The exact number depends on the program.
For many programs you can find the numbers and their meaning in the corresponding man pa...
How to turn off CodeLens-References
I recently installed Visual Studio 2013 Ultimate.
Now, as you know, there is this "n references" above all methods.
4 Answ...
What's the difference between “Normal Reload”, “Hard Reload”, and ...
...ll use the cache but revalidate everything during page load, looking for "304 Not Modified" responses. If the browser can avoid re-downloading cached JavaScript files, images, text files, etc. then it will.
Hard reload
Don't use anything in the cache when making the request. (which is equal to SHIF...
If I fork someone else's private Github repo into my account, is it going to appear in my account as
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answered Mar 6 '14 at 22:05
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Find unmerged Git branches?
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edited Jan 9 '15 at 20:05
answered Sep 5 '12 at 6:57
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MySQL: Selecting multiple fields into multiple variables in a stored procedure
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edited Feb 8 '15 at 17:50
answered Mar 15 '10 at 22:52
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Bogus foreign key constraint fail
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101
Two possibilities:
There is a table within another schema ("database" in mysql terminology) w...
Why does an NSInteger variable have to be cast to long when used as a format argument?
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edited Nov 10 '13 at 9:24
answered Apr 18 '13 at 6:43
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WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
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106
They are the same thing. If you use the set transaction isolation level statement, it will appl...
How to output messages to the Eclipse console when developing for Android
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answered Jun 9 '10 at 16:25
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